What Is A Testamentary Trust?
First, we need to briefly define what a trust is. A trust is created when someone (often referred to as the grantor or trustor) transfers the legal title of property to a trustee to hold and administer for the benefit of the beneficiary. A trust can also be created after someone’s death via their will. This is called a testamentary trust.
A testamentary trust is an irrevocable trust created when a person dies and whose terms are spelled out in their will. While trusts are normally created when the grantor is still alive, a testamentary trust is drafted when alive, but it doesn’t come into existence until the grantor’s death.
contact us
How a Testamentary Trust Is Created
Before their demise, the grantor will determine the terms of the trust and how they want their assets to be held in trust. The terms of the trust will be included in the grantor’s will. During the estate administration, the trust will then come into existence once the personal representative gives the trustee the assets. The governing document can be simple or complex. It can create a dynastic trust or a simple trust which distributes when the beneficiary reaches a certain age; similar to a conservatorship.
Example of a Testamentary Trust
A common testamentary trust is for a parent to provide for their child to receive their inheritance in tranches. For example, in a testamentary trust a mother might specify in her will that when she dies, her assets will be held in trust and managed for the benefit of her child until they reach the age of 25, 30, and 35. Upon reaching those ages, ⅓ of the assets will be distributed to the child.
5 Benefits Of a Testamentary Trust
- Flexibility– A testamentary trust is easily changed by updating one’s will. This lets someone change the terms of the trust and how and when they want their assets to be distributed.
- Protection — The grantor can establish a trust to protect the assets left to a beneficiary in the case of divorce, bankruptcy or tort liability.
- Lower Cost — Because testamentary trusts do not need to be funded during life, it costs less to create a testamentary trust than a revocable living trust.
- Taxes — Testamentary trusts allow for advanced estate and income tax planning choices to be incorporated into the plan.
- Easy to Administer – Because the assets which will go into the trust remain owned by the grantor until death, there are no ongoing administrative costs associated with establishing a testamentary trust in your will.
Some people set up trusts with a bank or other financial institution as the trustee, but a testamentary trust may also be established with a family member as the trustee to reduce costs. An experienced trusts and estates attorney will be able to guide you through the choice.
Testamentary trusts can be a useful instrument for effective estate planning. Please call or email our estate planning attorneys at Copper State Planning in Phoenix, Arizona so we can schedule your initial consultation, 602-607-3350


Let’s Make a Plan
Don’t worry, we’ve got this. We’ll guide you through every step of the process and
make sure everything will be okay.
Call us today to speak with your legacy guide.
FAQs
What is a testamentary trust?
A testamentary trust is a trust that is created within a Last Will and Testament and only goes into effect upon the death of the person creating the will (the testator). Unlike living trusts, it does not exist while you are alive; it is “triggered” by the probate of your will to manage assets for your beneficiaries.
How does a testamentary trust work?
The terms of the trust are written directly into your will, outlining how specific assets should be managed and distributed. After you pass away, your will goes through probate, the assets are transferred into the trust, and a designated trustee manages them according to the instructions you left.
Do testamentary trusts avoid probate in Arizona?
No, testamentary trusts do not avoid probate. Because the trust is created inside a will, the will itself must first be admitted to probate before the trust can be established and funded.
How does a testamentary trust differ from a revocable living trust?
The main difference is timing and probate. A revocable living trust is active while you are alive and helps avoid probate, whereas a testamentary trust is created only after death and requires probate to activate. However, testamentary trusts often have lower upfront costs than living trusts.
Why are testamentary trusts beneficial for minor children?
They allow parents to control when and how children receive an inheritance, rather than giving a minor a lump sum they cannot legally manage. You can stipulate that funds be used for health, education, and maintenance until the child reaches a mature age.
What are the main benefits of using a testamentary trust?
Testamentary trusts offer low upfront costs, court oversight (if requested by the beneficiaries) during probate (which provides transparency), and the ability to protect assets from a beneficiary’s creditors, divorce, or poor spending habits.
What are the downsides of a testamentary trust?
The primary downsides are that they necessitate probate, which can be time-consuming and public, and the trust is not funded until after the estate administration process is complete.
Can I place conditions on when beneficiaries receive money?
Yes, this is a key feature. You can set specific conditions, such as requiring a beneficiary to reach a certain age (e.g., 25, 30, or 35), graduate from college, or remain drug-free before receiving distributions.
Who manages the assets in a testamentary trust?
A trustee, whom you select and name in your will, manages the assets. This can be a trusted family member, a friend, or a professional fiduciary like a bank or trust company.
When does a testamentary trust actually go into effect?
The trust only becomes effective upon your death and after the will has been submitted to the probate court. Until that time, you can change or revoke the terms of the trust by updating your will.
What are the tax implications of a testamentary trust?
Testamentary trusts are separate taxable entities that must file their own income tax returns (Form 1041). Income retained in the trust may be taxed at higher trust tax rates, while income distributed to beneficiaries is generally taxed at their individual rates.
How do I establish a testamentary trust?
You establish one by having an estate planning attorney draft specific trust provisions within your Last Will and Testament. It does not require funding or separate management while you are alive. In addition, you must ensure you erase or have your beneficiary designations (like life insurance) point to your Estate/the testamentary trust, otherwise the assets will bypass this trust entirely.
Is a testamentary trust revocable?
The will creating the trust is revocable while you are alive, meaning you can change the trust terms at any time. However, once you pass away, the testamentary trust becomes irrevocable and cannot be changed.
Why is a testamentary trust often cheaper to set up than a living trust?
Even though the dispositive provisions are the same, it is part of your will and does not require the immediate retitling of assets or separate funding procedures while you are living. Therefore, the initial legal fees are often lower than those for a complex revocable living trust. However, because the Will must go through probate, the total cost to your estate after you pass is often significantly higher than with a Living Trust.
When should I consider hiring a testamentary trust attorney?
You should consider an attorney if you want to leave assets to minors, heirs with special needs (requiring a properly drafted Supplemental Needs Trust to preserve government benefits), or beneficiaries who may struggle with money management, but you want a simple, cost-effective estate plan that activates only upon your death.
Let’s Talk
I’m sure you have a lot of questions. And we’re here to answer them. Just give us a call or fill out the form to the right and we’ll call you.
4435 E Chandler Blvd #200 Phoenix, AZ 85048
By Appointment Only
